(a) For buildings having walls adjoining one street only, the "grade" is the elevation of the sidewalk at the center of the wall adjoining the street.
(b) For buildings having walls adjoining more than one street, the "grade" is the average of the elevation of the sidewalk at the center of all walls adjoining the streets.
(c) For buildings having no wall adjoining the street, the "grade" is the average level of the finished surface of the ground adjacent to the exterior walls of the building. Where no sidewalk exists, the "grade" shall be established by the City Engineer.
(Ord. 24-66. Passed 4-5-66. )